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professor190 [17]
2 years ago
8

The weight limit for a piece of luggage is 50 pounds. How many kilograms is this?

Mathematics
2 answers:
Usimov [2.4K]2 years ago
7 0

Answer:

22.6796KG

Step-by-step explanation:

max2010maxim [7]2 years ago
3 0

Answer:

22.6796 kg

Step-by-step explanation:

i looked it up

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Find the sum of the polynomials: (x2 + 4x + 5) + (3x – 3)
ella [17]

+2x6 + 4x5 + x4 + 11x3 + 2x2 + 4x + 4

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3 years ago
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Find the minimum sample size necessary to be 99% confident that the population mean is within 3 units of the sample mean given t
SVEN [57.7K]

Answer:

The minimum sample size required is 207.

Step-by-step explanation:

The (1 - <em>α</em>) % confidence interval for population mean <em>μ</em> is:

CI=\bar x\pm z_{\alpha /2}\frac{\sigma}{\sqrt{n}}

The margin of error of this confidence interval is:

MOE=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}

Given:

MOE=3\\\sigma=29\\z_{\alpha /2}=z_{0.01/2}=z_{0.05}=2.576

*Use a <em>z</em>-table for the critical value.

Compute the value of <em>n</em> as follows:

MOE=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}\\3=2.576\times \frac{29}{\sqrt{n}} \\n=[\frac{2.576\times29}{3} ]^{2}\\=206.69\\\approx207

Thus, the minimum sample size required is 207.

3 0
2 years ago
A construction company plans to invest in a building project. There is a 30% chance that the company will lose $30,000, a 40% ch
Gnom [1K]

Answer: Option 'A' is correct.

Step-by-step explanation:

Since we have given that

30% chance that the company will lose $30000.

40% chance of a break even that there is no loss and no profit.

30% chance that the company will profit $ 60000.

As we know the formula for "Expectation":

So, Expected value will be

\frac{30}{100}\times (-30000)+\frac{40}{100}\times 0+\frac{30}{100}\times 60000\\\\=03\times (-30000)+0.4\times 0+0.3\times 60000\\\\=-9000+18000\\\\=\$9000

Expected value is $9000. So, the company should proceed with the project.

Hence, Option 'A' is correct.

4 0
2 years ago
2. Simplify: (-4a+b-2c) - (3a +26-c)<br> -)
erastovalidia [21]

Answer:

I thinks its, -7a+b-3c+26

Step-by-step explanation:

idk

5 0
2 years ago
I don’t understand this. Can someone help me?
Aleksandr [31]

Answer: Mark me brainliest..

Step-by-step explanation: and imma put the answer inside the comments if you do so. youve got nothing to lose! :D

5 0
3 years ago
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